학술논문
An Ultrafast Semiconducting Nanowire THz Polarization Modulator
Document Type
Conference
Author
Source
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2019 44th International Conference on. :1-2 Sep, 2019
Subject
Language
ISSN
2162-2035
Abstract
In this work, we will demonstrate a novel ultrafast THz modulator based on GaAs semiconductor nanowires at very high THz bandwidth. The modulator devices were fabricated using a highly flexible and cheap substrate – parylene-c. Through the use of multiple layers of this substrate, we show that for higher layers, a higher modulation depth is achieved without affecting the bandwidth over which the devices can operate. A terahertz air-plasma setup was built which allowed us to assess the devices over a broad range bandwidth of 0.1 THz – 40 THz.